Grass Knot (Japanese: くさむすびGrass Rope) is a damage-dealing Grass-typemove introduced in Generation IV that deals varying damage. It shares the same mechanic as the move Low Kick. It has been TM86 since Generation IV.

Effect

Grass Knot doesn't have a standard base power. Rather, its damage is calculated based on the weight of the target. Grass Knot's power is calculated as follows (note that Game Freak used weight in kilograms for all the cutoffs):

In the Pokémon Adventures manga

Roserade stares at a patch of grass by the opponent's feet. Suddenly, two bunches of grass fold toward each other. When the tips touch, they wrap around each other and the opponent trips over the tied grass.